tests

Fix regex tests on Python 3.14 #1474

Job	Run time
collateral (diffcov)	53s
test_cygwin (39, windows-latest)	6m 54s
collateral (docs)	33s
test_msys2_mingw (clang64, clang-x86_64, clang, clang++)	1m 37s
test_msys2_mingw (mingw32, i686, gcc, g++)	1m 33s
test_msvc_python_mingw	2m 32s
test_msys2_mingw (mingw64, x86_64, gcc, g++)	1m 43s
test (3.9, macos-latest)	7m 40s
test (3.9, windows-latest)	4m 47s
test (3.9, ubuntu-latest)	46s
test_msys2_mingw (ucrt64, ucrt-x86_64, gcc, g++)	1m 30s
test (3.13, ubuntu-latest)	57s
test (3.13, macos-latest)	56s
test (3.13, windows-latest)	2m 17s
test (3.12, ubuntu-latest)	54s
test (3.11, ubuntu-latest)	48s
ci_setuptools (3.10, ubuntu-latest)	3m 42s
test (3.14, ubuntu-latest)	3m 5s
test (pypy3.10, ubuntu-latest)	4m 10s
test (3.10, ubuntu-latest)	52s
check	3s
release	0s
	48m 12s

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